Guide to restart nodejs

Every time you update the new version or change the information in the whatsapp server installation directory, you need to restart nodejs to update.
Here are instructions to restart nodejs with each server

Aapanel:

Step 1: Create cronj kill port 8000

sudo kill -9 $(sudo lsof -t -i:8000)

Step 2: 

Execute cronj kill port 8000

Step 3: 

Execute cronj waziper

Cpanel:

Plesk:

Control Web Panel